Ball Valve Lead-free 622F 1" Series 622F Full Port Ball Valves are designed for steam service applications. They are ideal for throttling and ba...

Ball Valve Lead-free Tapped 1" Series LF622FT Lead-Free* Full Port Tapped Ball Valves are designed for steam service applications. They are ideal...

This ultra calculator is special by allowing you to choose among a great variety of units (6 for diameter and 24 each for velocity and flow rate).

Test Cock Lead-free 1/4" M x 1/4" F Series LFTC1 Lead-Free* Full Port Test Cocks feature a cast copper silicon alloy body, low-pressure drop, PTF...

A new generation of hydronic heating: This photograph depicts corrosion-proof, hot-water tubing stapled to the underside of subflooring.

Internal Kit 710 1" Series 710, 715 Atmospheric Vacuum Breakers assure positive protection against backsiphonage of impure water into the main su...

2019927 — A hot water recirculation system allows for nearly instant access to hot water ... The small, very quiet, long-lasting pump that's installed by ...

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375 Reduced Pressure Principle Assembly Size: 1" 175psi The Zurn Wilkins 375 Reduced Pressure Principle Backflow Preventer provides high hazard p...

Test Cock Lead-free 1/8" M x 1/4" F Series LFTC1 Lead-Free* Full Port Test Cocks feature a cast copper silicon alloy body, low-pressure drop, PTF...

40XL-5-150-34 | WTS40XL-5-150-34 | WATTS® | WATTS® 40L Series 40XL-5-150-34 Automatic Reseating Temperature and Pressure Relief Valve, 3/4 in Nominal..

Since 1910 Ames Company has been a leader in the manufacture of valves and fittings for all types of pipeline systems. Ames products serve the fire protection, ...

Reduced Pressure Assembly w/ Union End Ball Valves Size: 1" Material: Bronze Series 860U Reduced Pressure Zone Assemblies are designed for and su...

825 "Y Design" Reduced Pressure Zone Assembly w/ Ball Valve Size: 3/4" Material: Bronze The FEBCO 825Y Reduced Pressure Zone Assemblies are used ...

825 "Y Design" Reduced Pressure Zone Assembly w/ Ball Valve Size: 1" Material: Bronze The FEBCO Series 825Y Reduced Pressure Zone Assemblies are ...

Tapped Ball Valve 1" 400 Psi FNPT 850 is slowly being replaced by 850XL The Zurn Wilkins 850XL Full Port Bronze Ball Valve is recommended for res...

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Repair Kit 710 1 1/4 Series 710, 715 Atmospheric Vacuum Breakers assure positive protection against backsiphonage of impure water into the main s...

Febco 1113FEB 850 1" Double Check With Ball Valve LF850 Lead-Free* In-Line Design Double Check Valve Assemblies are designed to prevent the backf...

We keep many of the best of these valves and devices in stock to help you to keep your water systems from being contaminated or polluted. If you can't find a valve or accessory here in stock, we’re more than happy to special order it for you, shipping it to your door as soon as we can. With free shipping on all orders over $149, it’ll be hard to find any place you’ll get it for less, either - so browse our backflow device collection today!

Hydronic (liquid) systems, popular and cost-effective systems for heating-dominated climates, have been in extensive use in Europe for decades.

975 Reduced Pressure Principle Backflow Prevention Assembly W/ Union Size: 3/4" 175 psi Material: Bronze The Zurn Wilkins 975XLU Reduced Pressure...

This 1 inch Y pattern reduced pressure zone backflow preventer assembly is designed to prevent the reverse flow of high hazard (toxic) fluids found in the ...

Whether you need an atmospheric vacuum breaker, a sprinkler system control valve, a pressure assembly, or any other type of device, we have what you need. Choose from an array of Conbraco, Febco, and Wilkins devices for the best valve options around.

Pressure Vacuum Breaker Assembly Size: 1" Freeze Resistant Material: Bronze The Apollo® Model PVB4A and PVBLF4A Pressure Vacuum Breaker A Series ...

This 1 in. lead free water pressure reducing valve is designed to reduce incoming water pressure to protect plumbing systems and reduce water consumption.

Wet installations are the oldest form of modern radiant floor systems. In a wet installation, the tubing is embedded in the concrete foundation slab, or in a lightweight concrete slab on top of a subfloor, or over a previously poured slab.

Author: Dr. Sarma Pisupati, Professor, Department of Energy and Mineral Engineering, College of Earth and Mineral Sciences, The Pennsylvania State University.

Tapped Ball Valve 3/4" 400 Psi 850 is slowly being replaced by 850XL The Zurn Wilkins 850XL Full Port Bronze Ball Valve is recommended for reside...

Check valve

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A new generation of in-floor hydronic heating that employs corrosion-proof, hot-water tubing has enjoyed widespread popularity in recent years. With this type of system, heat is evenly distributed and floors are warm under foot. A variety of heating equipment may heat water: natural gas or propane water heater or boiler, electric boiler, wood boiler, heat pump, solar collector, or even geothermal energy.

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Canopy and Nut Replacement Kit For Pressure Vacuum Breaker (765) 1" x 1 1/4" Series 765 Pressure Vacuum Breakers are designed to be installed to ...

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Instructions: Dr. P. is doing some remodeling and needs to purchase new flooring. Assuming his home uses radiant heat, help him select the most appropriate flooring option.

Full Port Ball Valve 1" 400 Psi FNPT 850 is slowly being replaced by 850XL The Zurn Wilkins 850XL Full Port Bronze Ball Valve is recommended for ...

Pressure Reducing Valve w/ Union 3/4" Union x NPT Compact Direct Acting, 1/2" to 1". Apollo® Model PRC (36C Series) Pressure Reducing Valves are ...

Febco 710EFEB 710 1" AVB Series 710, 715 Atmospheric Vacuum Breakers assure positive protection against back siphonage of impure water into the m...

Tubing for a hydronic system may be installed in a conventional concrete slab or in a lightweight, gypsum-cement slab. It can also be stapled to the undersides of subflooring as shown in the image below:

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Ames - Backflow Valves DCV Ames. ... Backflow Device Cabinets and Cages. Back. VIEW ALL Backflow Device ...

Item, Boiler Pressure Relief Valve. Body Material, Iron. Inlet Size, 3/4". Inlet Type, Female Threaded. Mfr. Series, 374A. Outlet Size, 3/4".

This courseware module is offered as part of the Repository of Open and Affordable Materials at Penn State. Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The College of Earth and Mineral Sciences is committed to making its websites accessible to all users, and welcomes comments or suggestions on access improvements. Please send comments or suggestions on accessibility to the site editor. The site editor may also be contacted with questions or comments about this Open Educational Resource.

Because air cannot hold large amounts of heat, radiant air floors are not cost-effective in residential applications and are seldom installed.

Electric radiant floors are usually only cost-effective if your electric utility company offers time-of-use rates. Time-of-use rates allow you to “charge” the concrete floor with heat during off-peak hours (approximately 9 p.m. to 6 a.m.). If the floor's thermal mass is large enough, the heat stored in it will keep the house comfortable for eight to ten hours without any further electrical input. This practice saves a considerable number of energy dollars compared to heating at peak electric rates during the day.

Backwater valve

ERB is an open association of 22 European countries operating and managing well instrumented experimental and representative basins for hydrological and ...

Hydronic radiant floor systems pump heated water from a boiler through tubing laid in a pattern underneath the floor. The temperature in each room is controlled by regulating the flow of hot water through each tubing loop via a system of zoning valves or pumps and thermostats.

Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Pressure Vacuum Breaker Assembly Size: 3/4" Freeze Resistant Material: Bronze The Apollo® Model PVB4A and PVBLF4A Pressure Vacuum Breaker A Serie...

975 Reduced Pressure Principle Backflow Prevention Size: 1" 175 psi Material: Bronze The Zurn Wilkins 975XL Reduced Pressure Principle Backflow ...

Although ceramic tile is the most common floor covering for radiant floor heating, almost any floor covering can be used. However, some perform better than others. Common floor coverings like vinyl and linoleum sheet goods, carpeting, wood, or bare concrete are often specified.

975 Reduced Pressure Principle Assembly Backflow Prevention Assembly w/ Unions Less Ball Valves, Male Pipe Thread Size: 1" 175 psi Material: Bronz...

The John A. Dutton Institute for Teaching and Learning Excellence is the learning design unit of the College of Earth and Mineral Sciences at The Pennsylvania State University.